Sodium vitrate injection is a medication used to treat disorders of the musculoskeletal system. Sodium vitrate is a substance widely present in the human body, which is distributed in the skin, joints and eyes of the human body, etc. Sodium vitrate is highly viscous, elastic and mimetic, which can play a protective role for the tissues, and can play a lubricating role in the joints, which can improve the contracture of the joints and inhibit the degenerative changes of the cartilages, so it is widely used in the clinic for a variety of orthopaedic diseases, including arthritis, periarthritis of shoulder joint, osteoarthritis, deformational joint disease and many other diseases in the treatment. The price of sodium vitrate injection varies, with domestic ones being cheaper, at around a few dollars to a dozen dollars a pop, and imported ones being more expensive, possibly up to fifty to hundreds of dollars a pop. Usually, adults are injected once a week for up to five weeks in a row, taken by intra-articular injection.